Machine jtob attaching strings to envelops and the like



A.NOV|CK. MACHINE FOR ATTACHVING STRINGS T0 ENVELOPS AND THE LIKE.

APPHCATION HLED JULY 8,1919.

Patented Apr. 19, 1921,

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-LNOVICK. MACHlNE FOR ATTACHING STRINGS TO ENVELQPS AND THE LIKE. APPLICATION FILED JULY 8.1919.

1,375,229, Patented Apr. 19, 1921 7 SHEETSSHEET Z- [zz van for: Abraham Mal/Zak A.NOVICK.

MACHINE FOR ATTACHING STRINGS T0 ENVELOPS AND THE LlKE.

APPLICATION FILED JULY 8, I919 Patented Apr. 19, 1921.,

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APPLlCATlON FILED JULY 8,1919.

1,375,229. Patented Apr. 19, 1921..

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A. NO VICK. MACHINE FOR ATTACHING STRINGS T0 ENVELOPS AND THE LIKE.

APPLICATION FILED JULY 8.19M).

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' his Azw ney A. NOVICK. MACHINE FOR ATTACHING STRINGS T0 ENVELOPS AND THE-LIKE.

APPLICATSON FILED JULY -1919.

Patented Apr. 19, 1921.

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A. NOVICK.

MACHI NE FOR ATTACHING STRINGS T0 ENVELOPS AND THE LIKE. APPLICA'HON FILED JULY 8, 1919 1 ,375,229. Patented Apr. 19, 1921.

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Abra/z am [Mama/t? N his Aiwmwgz UNITED STATES PATENT OFFICE.

ABRAHAM NOVICK, OF NEW YORK, N. Y., ASSIGNOB, TO F. L. SMITHE MACHINE COM- PANY, INCORPORATED, OF NEW/V YORK, N. Y., A CORPORATION OF NEW YORK.

MACHINE FOR ATTACHING STRINGS TO ENVELOPS AND THE LIKE.

Specification of Letters Patent.

Patented. Apr. 19, 1921.

Application filed July 8, 1919. Serial No. 309,436.

T 0 all whom it may concern:

Be it known that l, ABRAHAM NOVICK, a citizen of the United States, and a resident of New York, borough of Manhattan, in the county of New York and State of New York, have invented certain new and useful Improvements in Machines for Attaching Strings to Envelops and the like, of which the following is a specification.

This invention relates to machines for attaching string to envelops and the like and is particularly directed to means for attaching to the bodies or flaps, or both, of cnvelops or other receptacles made of sheet material, one or more washers, as by means of eyelets, and thereafter aiiixing a string to the body or fiap portion of the envelop by winding that string between a washer and the envelop body or flap.

The object of my improvements is to provide a machine of the class specified, reliable in action, eflicient in operation and of high speed in results.

The machine of the present application is in the nature of an improvement upon the machine of my eopending application, Se rial Number 284, 111 filed March 22nd, 1919, to which reference may be had.

To these ends my improvements comprise features illustrated in their preferred embodiment in the drawings accompanying this specification, wherein Figure 1 is a plan view of so much of a string attaching machine as will suffice to illustrate my improvements. Fig. 2 is a front elevation looking in the direction of arrow 2 of Fig. 1; Fig. 3 is a side elevation looking in the direction of arrows 3 of Figs. 1 and 2. Fig. 4 is an elevation similar to that of Fig. 3, the section being taken on line l4 of Fig. 1. Fig. 5 is a fragmentary plan view of a detail which is partly hidden in Fig. 1. Fig. 6 is a sectional bottom plan view of a detail, looking in the direction of arrows 6 of Figs. 2 and 4:. Figs. 7, 8, 9, 10, 11 and 12 are fragmentary sectional side elevations, similar to a portion of Fig. 4, illustrating steps in the operation of my improvements. All the figures of the drawin s are to one scale.

l My improved machine includes two lower tool carrying plungers 7 and 8, respectively, preferably arranged closely adjacent to each other and preferably arranged for reciprocation vertically. Above said plungers 7 and 8 is another tool carrying plunger 9, arranged for vertical reciprocation and for transverse movement for alternate coaction with plunger-s 7 and 8, see particularly Fig. 4. Plunger 7, as viewed from the front of the machine, looking in the direction of arrow 2, Fig. 1 is rearward of plunger 8. Said plunger 7 carries mounted therein eyelet setting die 10, and spring urged for reciprocation through said die, needle 11. Said plunger 7 may be reciprocated vertically at suitable times by means of bell-crank lever 12 pivoted at 13 to arm 1% supported from bed 15. Said lever 12 has its bifurcated end 16 in sliding engagement with pins 17, 17 outstanding in opposite directions from the lower end of plunger 7. Said bell-crank lever 12 may be rocked on its pivot at suitable times by cam 18 fixed to main cam shaft 19, Figs. 1 and 2. For transmitting motion from cam 18 to lever 12, cam roll 20 carried by one arm of bell-crank lever 21 engages said cam. Said lever 21 is pivoted at 22 to bracket 23 of bed 15, and the other arm of said lever is adjustably pivotally connected to one end of link 24:, the other end of said link being pivotally connected to lever 12.

Plunger 8 which carries washer receiving seat 25, eyelet setting die 26 and presser ring 27, all at its upper end, has channel 86 lengthwise therethrough, and channel 87 connecting the upper part of channel 86 with the outer edge of presser ring 27, for the passage of the string 88. For gripping the upper end of the string as it emerges from channel 87, to keep the string from falling back into channel 86 and to hold the end of the string securely while the body of the string is wound between the washer and the envelop flap, I provide a gripper, Fig. 5, comprising two jaws 91 and 92 at least one of which is pivotally mounted, as 91 at 93 and urged by spring 94 to engagement with the other jaw 92. Said jaws are arranged angularly relatively to each other so that a string passed between their engaging points is free to be drawn, under slight tension therebetween in the direction of the arrow, but is tightly gripped by said jaws if an attempt is made to draw the string in a contrary direction.

lVhile improved machine may be operated efficiently without reciprocating plunger 8 in the direction its length, I prefer to provide a slight movement of that character and accomplish this by means of gear 28 fixed to shaft 29 rotatably mounted in brackets 30 depending from bed 15. Said gear meshes with rack 31 of plunger 8 and is oscillated from cam 32 on shaft 19 through connections of well known character, including rock-arm 33 fixed to shaft 29, and link 34. Said plunger 8 is at suitable periods actuated rotatively. To this end rack 31 encircles plunger 8, so that gear 28 may remain in mesh with said rack during the rotation of plunger 8. At the lower end of plunger 8 sprocket is fixed and said sprocket is driven by a chain, not shown, from sprocket 36 fixed to the lower end of shaft 37. Shaft 37 is rotated one complete turn, from time to time, and as sprocket 36 is twice the diameter of sprocket 35, plunger 8 is given two complete rotations to one rotation of shaft 37. Keyed to shaft 37, Figs. l and (3, is ring 38 carrying one end of rocking key 39. Said rocking key extends upwardly, partly in shaft 37 and at times partly in bevel gear all, and has outstanding arm 49 urged by spring 12 in anti-clockwise direction, Fig. 6. For normally holding rocking key 39 out of engagement with gear 4'21 against the tension of spring 42, vertically moving pin 43, Fig. 3, is provided. Said pin is normally depressed against spring 4 1 by the high part of cam 15 on shaft 19 and then engages arm' lll. W hen the low part of cam coacts with pin 43, spring 14; causes that pin to rise and permit rocking key 39 to engage gear 411 and rotate shaft 37 and sprocket 36. Bevel gear 11 is in constant mesh with large bevel gear 160f three times the size of small bevel gear 41. The low portion of cam is of sufiicient length to liberate rocking key 39 to cause shaft 37 to make one revolution in engagement with gear ell and said revolution is made during one third of a revolution of gear 46 and cam shaft 19.

F or actuating plunger 9 in alternate coaction with plungers 7 and 8, the following means are provided: Said plunger is pro vided on one side thereof with rack teeth 17 in engagement with pinion 18. Said pinion is mounted for rotation in car 49 of upstanding frame 50 and is oscillated from time to time by cam 51 on shaft 19 through connections 52, 5 1, the last of which is an arm fixed to the rear end of pinion 48. The face of pinion 4:8 is long enough to permit rack 17 to slide endwise in mesh therewith, as said plunger 9 :is moved back and forth from alternate engaging positions with plungers 7 and 8 respectively.

For thus moving plunger 9 the following means are provided: Said plunger is carried in the forward end of slide 55, mounted for reciprocation parallel with bed, 15 in frame 50. Movement is imparted to said slide from cam 56 fixed to cam shaft 19, through roll 57 pivotally mounted near the rear end of said slide. Said roll is constrained to engagement with said cam by spring 58.

F or supplying the envelop flap with opposite washers and an eyelet for securing those washers, some well known means may be employed, and as an example of such means 1 have shown the following: For supplying the washer for the inside face of the flap, a continuous strip of paper or other convenient sheet material 59 is fed intermittently by rolls (50, 61, Figs. 1 and 3. Said rolls are geared together by gears 62, 63 respectively and shaft 6% of roll 60 is rotated incrementally and intermittently by pawl (35 in engagement with ratchet 66, the latter being fixed to shaft 1. Said pawl is actuated through connection (37 from a cam, not shown, on shaft 19. Roll 61 preferably turns freely on the eccentric head of shaft 68 and by means of lever 69 said eccentric head and said roll may be swung away from roll (30 to facilitate threading the paper strip between saio rolls, Figs. 1 and 8.

For punching washers one at a time from said strip 59, reciprocating punch 70 is provided. Said punch is rcciprocated at suit able times by means of a bell-crank 71 connected by link 72 with a cam, not shown, on cam shaft 19. Punch 70 delivers the punched washer to slide 73 by which said washer is delivered to setting position, F 8, concentric with needle 11 and upper plunger 9. For actuating slide 73, link 7 1 and bell-crank lever 75 are employed. The free end of lever 7 5 may be connected with and actuated by a cam not shown on cam shaft 19.

The other washer for said flap may be supplied from the bottom of a stack of washers 76., Figs. 1 and 2, by reciprocating slide 77 actuated by lever 78 pivoted at 7 9 on bed 15. Said lever may be actiwted from a cam not shown, fixed to cam shaft 19. lflyelets may be'supplied from hopper 8O pivoted at 81 on frame 50. Said hopper may be oscillated to present its nose 83 into delivery position, 2, and to swing said nose away from said position by the vertical movement of rod 82 the upper end of which is pivotally connected to an ear on said hopper and the lower end of which is operably connected with roll 84 in engagement with cam'85 on cam shaft 19.

For holding the envelop flap in engagement with the lower end of plunger 9, while that plunger is shifted from coacting position relatively to plunger to similar position relatively to plunger 8, 1 provide bifurcated blade 89 outstanding from frame 50. While said blade may be fixed to said frame and act aS a spring finger, l .prefer to move it up to follow the envelop flap and then lower it to repeat its operation. To

these ends said blade may be carrie l by slide moving in suitable hearings in the end of frame 530. Said slide may be actuated from a cam, not shown, on shaft 19 through connections including link and arm 96. Guard plate 97 may be provided, above which strip 59 may be led to its punching position, and below which the envelop flap be inserted.

The operation of my improved machine is as follows: The several members which operate directly on the envelop flap, being shown in 7, cam shalt 19, which is preterably actuated by some lrnown one-revolution mechanism, is started rotating in anti clockwise direction, Figs. 3 and l; slide 73 advances and delivers vertically over needle 11, washer 99, previously punched from strip 59; slide 77 also advances and delivers washer from the bottom of stack 76 to a plane below slide 78 and vertically ver needle 11; eyelet hopper 80 is swung on its pivot 81 and nose 83 thereof delivers eyelet 101 below washers 99 and 100 and in vertical alinement therewith. In the meantime pluz -er 9 has started to descend.

Envelop flap 102 is now inserted betwee slides 73 and 77. all as shown in Fig. 8. Plunger 9 continues its descent and its lower end enters the hole in washer 99; plunger 7 rises and its needle 11 passes through eyelet 101 and through lower washer 100 and presses flap 102 against the lower end of plunger 9; slides 73 and 77 and eyelet nose 83 withdraw and leave the washers, eyelet and. flap in the grip of nlungers 9 and 7, see Fig. 9. Then plunger 7, continuing its upward movement, pushes the eyelet through the flap and through the upper washer 99 and sets that eyelet against the lower end oi plunger 9, needle 11 retiring downwardly slightly, against its spring, ig. 10, Preferably said eyelet it not set tightly at this time, its final setting being reserved until after the string has been wound into place, as described later herein.

ln the meantime forked blade 89 has risen from the position of Fig. 7 through. the positions of Figs. 8 and 9 to that of Fig. 10, for maintaining flap 102 in engagement with the lower end of plunger 9. Plunger 7 now retracts to the position of Fig. 11, and plunger 8 commences to rise.

Slide 55 now moves outwardly to the left, Figs. i and 12, carrying plunger 9 therewith to cooperative relation with ascending plunger 8. Blade 89, still remaining in its upper position, maintains 102 in ena'ement with plunger 9 whereby said or carries that flap to the position of 12, where plunger 8 has risen to coaction with plunger 9, holding flap 102 therobetween, and presser ring 27 has forced flap 102 and the edges of washer 99 upwardly to make room for the entrance of string 88 between said flap and lower washer 100. The end of the string is gripped by jaws 91, 92. Plunger 8 now makes two revolutions and winds the string between said lower washer and flap.

Plunger 8 then rises a slight distance farther, giving a final and tight set to the eyelet, thus holding the string securely in place.

Plungers 8 and 9 thereupon recede from each other to the position of Fig. i, and the envelop flap to which the washers, eyelet and string have been attached, may be withdrawn from the machine, preferably drawing the string between jaws 91 and 92 and then severing the string just beyond said jaws.

I claim:

1. In a machine of the character described the combination of two adjacent parallel plungers and a third parallel plunger, means for shifting said third plunger into coaxial alinement with each of the other plungers one at a time, and means for rotating one of said adjacent plungers while it is in alinement with the third plunger.

2. in a machine of the character described the combination of two adjacent parallel plungers and a third parallel plunger, means for bringing said third plunger and one of the two adjacent plungers into coaxial alinement at one time and for bringing said third plunger and the other of the two adjacent plungers into coaxial alinement at another time, means for causing said plungers respectively to move endwise into coaction when in axial alinement, and means for rotating one of said plungers while it is in coaction with another plunger.

3. In a machine of the character described, the combination oi two adjacent parallel plungers, means for reciprocating one of said plungers and means for rotating the other plunger, a third plunger parallel with said two plungers, means for shifting said third plunger into coaxial alinement with each of said two plungers one at a time, and means for reciprocating said third plunger for coaction with said two plungers,

one at a time.

1. In a machine of the character described, the combination of two ad acent parallel plungers, means for reciprocating each thereof independently of the other, respectively, means for rotating one thereof, a

third plunger parallel with said two plungers, means for shifting said third plunger into coaxial alinement, and means for reciprocating said third plunger for coaction with said two plungers, one at a time.

5. In a machine of the character described, the combination of two adjacent parallel plungers, a third plunger parallel with said two plungers, means for shifting said third plunger into coaxial alinement with said two plungers, one at a time, means for reciprocating one of said two plungers and the third plunger, when in coaxial alinement, into coaetive engagement for securing together by means of an eyelet a previously assembled envelop flap and washer, means for reciprocating said third plunger, when in coaxial alinement with the other of said two plungers, into coactive engagement with said other of the two plungers, means for rotating said other plunger for winding a previously positioned string between said washer and flap, and means for holding said envelop flap in engagement with the lower end of said third plunger while that plunger is shifted from coaction with one of said two plungers to coaction with the other thereof.

6. In a machine of the character described for operating upon an envelop flap or the like the combination of a plunger, means for shifting said plunger from coacting relation with one mechanism into coacting relation with another mechanism, and a blade adapted for holding the envelop flap on said plunger while said plunger is shifted from coacting relation with one of said mechanisms to coacting relation with the other thereof.

7. In a machine of the character described for operating upon an envelop flap or the like the combination of a plunger, means for shifting said plunger from one operable position to another, a blade for holding the envelop flap on said plunger while said plunger is shifted from one of said operable positions to the other thereof, and means for moving said blade into and out of holding position.

8. In a machine of the character described for attaching a washer, an eyelet and a string to an envelop flap or the like, the combination of two adjacent plungers and athird plunger'mounted and actuated for coaction at one time with one of said two plungers and at another time with the other of said two plungers, and means for retaining the envelop flap on said third plunger while said plunger is shifted from coacting relation with one of said two plungers t0 coacting relation with the other thereof.

In witness whereof, I hereby aflix my signature this 7th day of July, 1919.

' ABRAHAM NOVICK. 

